Application of the Dose Limitation System to the Mining and Milling of Radioactive Ores, Issue 82 |
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Page 24
... mining methods for the given ore body should be evaluated . The acceptable mining methods should be assessed in ... method , and therefore the mine layout , is made . The cost implications of the choice of mining method are usually ...
... mining methods for the given ore body should be evaluated . The acceptable mining methods should be assessed in ... method , and therefore the mine layout , is made . The cost implications of the choice of mining method are usually ...
Page 62
... Mining method 1 was rejected early in the study because of excessive radiation exposure to workers . Mining methods 2 and 3 were further compared for radiation exposures . The calculations are summarized in Table I - III . Details of ...
... Mining method 1 was rejected early in the study because of excessive radiation exposure to workers . Mining methods 2 and 3 were further compared for radiation exposures . The calculations are summarized in Table I - III . Details of ...
Page 63
International Atomic Energy Agency. TABLE I - II . TOTAL DEVELOPMENT COSTS Mining method Method 1 Drift development X - cut development Stoping - - - Costs ( US $ ) 900 m @ US $ 775 m ̄1 ( 6 × 20 ) = 120 m @ US $ 650 m - 1 138 000 m3 ...
International Atomic Energy Agency. TABLE I - II . TOTAL DEVELOPMENT COSTS Mining method Method 1 Drift development X - cut development Stoping - - - Costs ( US $ ) 900 m @ US $ 775 m ̄1 ( 6 × 20 ) = 120 m @ US $ 650 m - 1 138 000 m3 ...
Common terms and phrases
122 cm ducting 220Rn daughters air volumes areas assessment auxiliary ventilation blasting collective dose competent authority considered decay series Dose rate drill drift dust effective dose equivalent electrostatic precipitators ensure Exposure to radon External exposure external radiation facility factors gamma gamma radiation high grade IAEA Safety Series ICRP increase inhalation installation intake air JOB ROTATION Jožef Stefan leakage located maintenance milling of radioactive mineral sands minimize mining and milling mining method open pit open pit mines optimization of radiation optimization procedure Option P.O. Box personal protective equipment Portorož potential practice production programme protective measures radiation exposure radiation protection radiation risk radioactive contamination Radioactive decay radionuclides radon daughter concentrations respirators result return airways shielding significant stope surface contamination Table tailings thorium tion Total cost Total exposure uranium mines ventilation system WL.h work-place workers